GB621593A - Transmitting and receiving circuits for wave transmission systems - Google Patents
Transmitting and receiving circuits for wave transmission systemsInfo
- Publication number
- GB621593A GB621593A GB33978/46A GB3397846A GB621593A GB 621593 A GB621593 A GB 621593A GB 33978/46 A GB33978/46 A GB 33978/46A GB 3397846 A GB3397846 A GB 3397846A GB 621593 A GB621593 A GB 621593A
- Authority
- GB
- United Kingdom
- Prior art keywords
- receiver
- cavity
- transmitter
- wave
- resonator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/10—Auxiliary devices for switching or interrupting
- H01P1/12—Auxiliary devices for switching or interrupting by mechanical chopper
- H01P1/122—Waveguide switches
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/03—Details of HF subsystems specially adapted therefor, e.g. common to transmitter and receiver
- G01S7/034—Duplexers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C7/00—Modulating electromagnetic waves
- H03C7/02—Modulating electromagnetic waves in transmission lines, waveguides, cavity resonators or radiation fields of antennas
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Electromagnetism (AREA)
- Radar Systems Or Details Thereof (AREA)
- Transmitters (AREA)
- Lasers (AREA)
- Microwave Tubes (AREA)
- Constitution Of High-Frequency Heating (AREA)
Abstract
621,593. Discharge apparatus. WESTERN ELECTRIC CO., Inc. Nov. 15, 1946, No. 33978. Convention date, Jan. 30, 1943. Addition to 575,432. [Class 39 (i)] [Also in Group XL (c)] Terminal apparatus of the type described in the parent Specification for an electric signalling system comprises a coaxial line or wave-guide connecting a transmitter and receiver to a common channel (e.g. an aerial), and a pair of cavity resonators coupled to the coaxial line or wave-guide so as to block the receiver during transmission and the transmitter during reception. Each resonator contains a gas discharge device, the couplings of the resonators to the coaxial line or wave-guide being linearly spaced a distance equal to a small odd multiple of a quarter wavelength (Fig. 6). In an alternative arrangement employing coaxial lines only one resonator associated with the receiver is employed (Fig. 2, not shown). The gas discharge device connector across the resonant chamber associated with the receiver is adapted to discharge in response to the resonant voltage applied to the cavity by the outgoing waves from the transmitter to effectively short-circuit the cavity and thus the input to the receiver, but to remain in the undischarged condition in response to an incoming wave, whilst that associated with the transmitter is adapted to discharge only during incoming waves. The cavity resonator, Fig. 3, comprises an upper rectangular box portion 8 and lower cylindrical portion 9, mounted slidably on a coaxial line 1. The portion 9 has a small slot 11 in one side opposite to and opening into the slot 5 in the outer coaxial conductor 4, so as to provide a window electrically coupling one side of the cavity to the line 1. Tuning of the resonator is effected by means of the slidable portion 13 and screw 12. The receiver coupling 2 is attached directly opposite the slot 11. Connected across the cavity of the portion 9 is a gas discharge tube 15, having electrode 16 and 17 forming the spark-gap, and an auxiliary electrode 18. The electrode 18 is maintained at a fixed negative potential with respect to the electrode 16 and 17 and is employed to reduce the leakage power at the initiation of the firing of the tube. Specification 589,023 and U.S.A. Specification 2,063,342 are referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US474122A US2774066A (en) | 1943-01-30 | 1943-01-30 | Transmitting and receiving circuits for wave transmission systems |
Publications (1)
Publication Number | Publication Date |
---|---|
GB621593A true GB621593A (en) | 1949-04-12 |
Family
ID=23882270
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3883/44A Expired GB575432A (en) | 1943-01-30 | 1944-03-01 | Improvements in terminal apparatus for electric signalling systems |
GB33978/46A Expired GB621593A (en) | 1943-01-30 | 1946-11-15 | Transmitting and receiving circuits for wave transmission systems |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3883/44A Expired GB575432A (en) | 1943-01-30 | 1944-03-01 | Improvements in terminal apparatus for electric signalling systems |
Country Status (7)
Country | Link |
---|---|
US (1) | US2774066A (en) |
BE (1) | BE471231A (en) |
CH (1) | CH265681A (en) |
DE (1) | DE827088C (en) |
ES (1) | ES175991A1 (en) |
FR (1) | FR938517A (en) |
GB (2) | GB575432A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2751586A (en) * | 1950-11-22 | 1956-06-19 | Raytheon Mfg Co | Signal-wave transmission systems |
USRE25679E (en) * | 1955-02-14 | 1964-11-10 | System for analysing the spatial distribution of a function | |
EP0184415B1 (en) * | 1984-12-04 | 1990-12-05 | Nippon Sanso Kabushiki Kaisha | Evacuated heat insulation unit |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE970327C (en) * | 1936-03-07 | 1958-09-11 | Pintsch Bamag Ag | Device for bundling ultra-short electromagnetic waves |
US2281717A (en) * | 1941-01-21 | 1942-05-05 | Bell Telephone Labor Inc | Electron discharge apparatus |
-
0
- BE BE471231D patent/BE471231A/xx unknown
-
1943
- 1943-01-30 US US474122A patent/US2774066A/en not_active Expired - Lifetime
-
1944
- 1944-03-01 GB GB3883/44A patent/GB575432A/en not_active Expired
-
1946
- 1946-11-15 GB GB33978/46A patent/GB621593A/en not_active Expired
- 1946-11-22 ES ES175991A patent/ES175991A1/en not_active Expired
- 1946-12-13 FR FR938517D patent/FR938517A/en not_active Expired
- 1946-12-21 CH CH265681D patent/CH265681A/en unknown
-
1948
- 1948-12-31 DE DEP28890D patent/DE827088C/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US2774066A (en) | 1956-12-11 |
CH265681A (en) | 1949-12-15 |
GB575432A (en) | 1946-02-18 |
DE827088C (en) | 1952-01-07 |
ES175991A1 (en) | 1947-08-01 |
FR938517A (en) | 1948-10-18 |
BE471231A (en) |
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